Grandson may have dwarfism

Hello! I’ve read through some posts but not finding anything specific. I was a foster mom to teenagers and all of them are now over 18. One of them had a baby just over a year ago. At his recent pediatric appointment the doctor said he may have dwarfism. I no longer live in town, otherwise I would go to the next one this coming Monday. In my place, my mom is going with my daughter and her son. My mom wants to be supportive and helpful, my daughter is still really young so this is all a lot for her. What questions should they ask the doctor? What things should they prepare for? Is there anything I can do, from far away? Any guidance you all can provide, either as a little person yourself or as the parent of a little person, would be very much appreciated.